Good system administrators recognize problems long before anyone asks, "Hey, is the Internet down?" Nagios, an open source system and network monitoring tool, has emerged as the most popular solution for sys admins in organizations of all sizes. It's robust but also complex, and Nagios: System and Network Monitoring, 2nd Edition, updated to address Nagios 3.0, will help you take full advantage of this program.

Nagios, which runs on Linux and most *nix variants, can be configured to continuously monitor network services such as SMTP, POP3, HTTP, NNTP, SSH, and FTP. It can also supervise host resources (processor load, disk and memory usage, running processes, log files, and so on) and environmental factors, such as temperature and humidity. This book is your guide to getting the most out of this versatile and powerful monitoring tool.

Inside Nagios, you’ll learn how to:

Install and configure the Nagios core, all standard plugins, and selected third-party plugins

Configure the notification system to alert you of ongoing problems—and to alarm others in case of a serious crisis

The book also includes a chapter that highlights the differences between Nagios versions 2 and 3 and gives practical migration and compatibility tips. Nagios: System and Network Monitoring, 2nd Edition is a great starting point for configuring and using Nagios in your own environment.

Author Bio

Wolfgang Barth has written several books for professional network administrators, including Firewall (Suse Press), Network Analysis (Suse Press), and Backup Solutions with Linux (Open Source Press). He is a professional system administrator with considerable experience using Nagios.

"This book will get novices off to a good start, but it's invaluable for anyone who is migrating from Nagios 2 to 3 or enhancing their monitoring setup."
—IT World (Read More)

"If you're going to delve into Nagios, and you have at least an intermediate understanding of computer technology, then this is the manual for you."
—The Tech Static (Read More)

"If you are looking to deploy a monitoring solution or already employ Nagios in your operations, this book is a must have. With it, you will save hours debugging that pesky Nagios configuration problem and learn to maximize Nagios' power to monitoring your IT operations."
—Ping Zine! (Read More)

"If you're planning a new Nagios installation, or you (correctly) suspect yours could be working harder for you, buy this book."
—Python Buzz Forum (Read More)